Results 31 to 40 of about 8,367,182 (364)

Impact of Dry Eye on Visual Acuity and Contrast Sensitivity: Dry Eye Assessment and Management Study

Optometry and Vision Science, 2019
Supplemental digital content is available in the text. SIGNIFICANCE Identification of the association of specific signs of dry eye disease with specific visual function deficits may allow for more targeted approaches to treatment.
L. Szczotka-Flynn, M. Maguire, G. Ying, Meng C Lin, V. Bunya, R. Dana, P. Asbell, M. Twa, Lyndon Jones   +8 more
semanticscholar   +1 more source

Comparison of the outcome of partial time occlusion therapy in strabismic versus anisometropic moderate amblyopes

Journal of the Egyptian Ophthalmological Society, 2022
Background Early in life, selective visual input disruption to one eye compromises most of the visual aspects, resulting in amblyopia, with a great social and economic effect.
Momen M Hamdi, Amr S Galal, Tarek R Ragheb, Samah M Fawzy   +3 more
doaj   +1 more source

Spatial contrast sensitivity in adolescents with autism spectrum disorders [PDF]

, 2010
Adolescents with autism spectrum disorders (ASD) and typically developing (TD) controls underwent a rigorous psychophysical assessment that measured contrast sensitivity to seven spatial frequencies (0.5-20 cycles/degree). A contrast sensitivity function
A Bertone, A Lahaie, AB Watson, APA, B Jemel, BS Abrahams, C Deruelle, C Deruelle, C Jarrold, C Kemner, C Lord, DH Kelly, E Ashwin, E Milne, E Milne, E Milne, E Pellicano, EJ Gumbel, Elizabeth Milne, F Faul, F Happé, F Happé, H Tager-Flusberg, HC Hughes, Hwan Cui Koh, J Gwiazda, J Katsyri, JA Movshon, JC Badcock, JE Scharre, JG Robson, JN Constantino, Karen Dobkins, KL Gunther, KR Dobkins, L Beglinger, L Mottron, M Behrmann, M Behrmann, M Rutter, MA Boeschoten, MA Boeschoten, MA Boeschoten, MJ Brosnan, MM Taylor, MV Jonge de, NL Johnson, O Tadevosyan-Leyfer, R Davis, S Risi, V Virsu, WH Ridder, XQ Liu   +52 more
core   +1 more source

Contrast sensitivity of insect motion detectors to natural images [PDF]

, 2008
How do animals regulate self-movement despite large variation in the luminance contrast of the environment? Insects are capable of regulating flight speed based on the velocity of image motion, but the mechanisms for this are unclear.
O'Carroll, David C., Rainsford, Tamath, Straw, Andrew D.   +2 more
core   +1 more source

Contrast Sensitivity and Glaucoma

Journal of glaucoma, 2019
Supplemental Digital Content is available in the text. Spatial contrast sensitivity decline occurs in different types and stages of glaucoma. In this short review we discuss methods of assessing contrast sensitivity, the role of contrast sensitivity in ...
P. Ichhpujani, Sahil Thakur, G. L. Spaeth   +2 more
semanticscholar   +1 more source

Psychophysical aspects of contrast sensitivity

African Vision and Eye Health, 2013
This paper reviews the psychophysical aspects of contrast sensitivity which concerns components of visual stimuli and the behavioural responses and methods used in contrast sensitivity testing.
Anusha Y. Sukha, Alan Rubin
doaj   +1 more source

Neonatal Contrast Sensitivity and Visual Acuity: Basic Psychophysics

Translational Vision Science & Technology, 2018
Purpose This research was prospectively designed to determine whether a 0.083 cycles per degree (cy/deg) (20/7200) square-wave stimulus is a good choice for clinical measurement of newborn infants' contrast sensitivity and whether the contrast ...
Angela M. Brown, Faustina Ottie Opoku, M. Stenger   +2 more
semanticscholar   +1 more source

Contrast sensitivity in β-thalassemic patients

Journal of the Egyptian Ophthalmological Society, 2015
Aim of work This work aimed to diagnose any abnormalities in contrast sensitivity and retinal functions in β-thalassemic patients. Patients and methods Thirty patients diagnosed with b-thalassemia were included in this study.
Tamer H El-Sersy, Heba W El-Saed
doaj   +1 more source

The Effect of Ocular Surface Regularity on Contrast Sensitivity and Straylight in Dry Eye.

Investigative Ophthalmology and Visual Science, 2017
Purpose To investigate the association between visual function and ocular surface regularity in dry eye. Methods We enrolled 52 eyes of 52 dry eye patients (34 dry eyes with superficial punctate keratopathy [SPK] in the central corneal region [central ...
S. Koh, N. Maeda, Chikako Ikeda, S. Asonuma, Mai Ogawa, T. Hiraoka, T. Oshika, K. Nishida   +7 more
semanticscholar   +1 more source

Evaluating the performance of the quick CSF method in detecting contrast sensitivity function changes

Journal of Vision, 2016
The contrast sensitivity function (CSF) has shown promise as a functional vision endpoint for monitoring the changes in functional vision that accompany eye disease or its treatment.
Fang Hou, Luis A. Lesmes, Woojae Kim, Hairong Gu, M. Pitt, Jay I. Myung, Zhonglin Lu   +6 more
semanticscholar   +1 more source